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W. P. ORB.

GARPENTBRS GAGE.

Patented Sept. 9, 1890.

(No Model.)

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UNITED STATES PATENT OFFICE.

WALKER P. ORR, OF BRADSHAW, TENNESSEE, ASSIGNOR OF ONE-HALF TO WILLIAMP. HARWELL, OF SAME PLACE.

oARPENTi-:Rs GAGE'.

SPECIFICATION forming part of Letters Patent No. 436,101, datedSeptember 9, 1890.

Application filed December 28, 1889. Serial No. 335,296. (No model.)

' specification.

The invention relates to improvements in carpenters gages.

The object of the present invention is to produce a carpenters gage ofsimple and inexpensive construction adapted for the measurements ofmortises and tenons and having its adjustable points,l which when onceadjusted are not llable to be varied by accident or carelessness intheir adjustment and deceive the workman.

A further object of the invention is to arrange the adjustable points sothat they will be out of the way when not in use to allow the head-blockto slide freely.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described, illustrated in theaccompanying drawings, and particularly pointed out in the claims.

In the drawings, Figures 1 and 2 are elevations of a gage constructed inaccordance with the invention. Fig. 3 is a central longitudinalsectional view. Fig. 4 is a similar view taken at right angles to Fig.3. Fig. 5 is a transverse sectional view through the head.

Referring to the accompanying drawings, 1 designates a beam of a gageprovided upon two of its contiguous sides with a metal covering 2, whichis designed'to bear suitable tables for measuring mortises and tenonsand the like, and as these are well understood in the art, and as thereis no novelty claimed therein,further description is deemed unnecessary.

The beam has sliding upon it a head-block 3, which is provided with acentral opening 4, and has one of its faces provided with a metal plate5, that has a central opening 6, that registers with the opening 4 ofthe headblock 3, and the head-block is retained at any desired positionby a thumb-screw 7, whose 12, registering, respectively, with the open-lings 9 and 10. The openings 9 and 10 are interiorly threaded, and areadapted to re-4 ceive screws 13 and 14, whose ends are pointed and areadapted to project through the perforations 11 and 12 of the metalcovering 2 to mark desirable measurements. The openings 9 and 10 arecountersunk at the sides of the beam 1 opposite to the metal covering 2,and the countersunk portions receive the heads of the screws. The screwsare shorter than the width and thickness of the beam, and when not inuse lie within the openings, thereby leaving a smooth surface for thepassage of the head-block.

The'screws are arranged at intervals that vary in length in order toobtain any desired distances between the points of the screws, and thebeam is designed to bear a table stating the distances between thevarious screws,

so that the gage can be set for any desired distance without measuring,as is well understood. t

From the foregoing description and the accompanying drawings, theconstruction, operation, and advantages of the invention will be readilyunderstood.

Having thus described my invention, what I claim is 1. The combinationof the gage-beam provided with a series of transverse threaded openings,and the screws arranged within the openings and adapted to projecttherefrom and lie when not in use entirely within the opening,substantially as and for the purpose described.

2. The combination of the gage-beam provided with a series of transversethreaded openings, the metal covering 2, having perforations registeringwith the threaded openings, and the screws arranged within the openingsand provided with points adapted to project through the perforations ofthe metal coverlng, substantially as described.

3. The combination of the scale-beam provided with a series oftransverse threaded openings 9, and having a series of transverse Ithreaded openings 10 arranged at right angies to the Openings 9, themetal covering provlded with perforations registering with the threadedopenings of the beam, and the screws arranged Within the threadedopenings and adapted to project through the per forations and capable oflying, when not in use, entirely Within the threaded openings,substantially as and for the purpose described.

In testimony that I claim the foregoing as I5 my own I have heretoaffixed my signature in presence of two Witnesses.

VALKER P. ORR. 'Witnesses l. J. CURTIS, WV. B. ORB.

